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SIBN · SI-BONE, Inc. · Shareholders & Ownership

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$20.72 +0.18 (+0.85%)
Market Cap
$920.57M
Shares
44.82M
Volume · Oct 21 58.16K Avg daily vol (3M) 555.57K

Every disclosed holder of SIBN in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns SIBN

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.

Holder group Shares % Out
Institutional (13F) 47,485,295 105.95%
Insiders (Forms 3, 4, 5) 2,026,241 4.52%
13D/G-only blocks 3,354,955 7.49%
Remaining 8,047,916 -17.96%
Registered funds (N-PORT, not summed) 16,583,160 37.00%

Shares outstanding: 44,818,575, the issuer's latest cover-page count restated onto today's split basis.

Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of SIBN

# Holder Shares
1
First Light Asset Management, LLC
13F CIK 1600004 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
8,127,985
2
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
3,676,259
2.1
BlackRock, Inc.
13G CIK 2012383 · Holding company · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
3,558,735
2.2
iShares Russell 2000 ETF
Fund S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
1,140,221
2.3
iShares Russell 2000 Growth ETF
Fund S000004343 · Registered fund · Jun 30, 2026
iShares Trust, not summed
404,383
2.4
iShares U.S. Medical Devices ETF
Fund S000009419 · Registered fund · Jun 30, 2026
iShares Trust, not summed
184,835
2.5
iShares Micro-Cap ETF
Fund S000004439 · Registered fund · Jun 30, 2026
iShares Trust, not summed
147,843
3
CADIAN CAPITAL MANAGEMENT, LP
13F CIK 1423686 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,347,574
3.1
CADIAN CAPITAL MANAGEMENT, LP
13G CIK 1423686 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
3,347,574
4
AMERICAN CENTURY COMPANIES INC
13F CIK 748054 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
2,510,963
4.1
Small Cap Growth Fund
Fund S000006193 · Registered fund · Jul 31, 2026
American Century Mutual Funds, Inc., not summed
1,895,954
5
ORBIMED ADVISORS LLC
13G CIK 1055951 · Registered investment adviser · Dec 31, 2023
Rule 13d-1(b), qualified institution
2,144,631
6
BROWN ADVISORY INC
13F CIK 1345929 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
2,077,134
6.1
Brown Advisory Small-Cap Growth Fund
Fund S000038483 · Registered fund · Jun 30, 2026
Brown Advisory Funds, not summed
376,277
6.2
Brown Advisory Sustainable Small-Cap Core Fund
Fund S000072895 · Registered fund · Jun 30, 2026
Brown Advisory Funds, not summed
78,347
7
Granahan Investment Management, LLC
13F CIK 1026710 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,931,182
8
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,838,499
9
Impax Asset Management Group plc
13F CIK 1749768 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,425,010
10
Impax Small Cap Fund
Fund S000021459 · Registered fund · Jun 30, 2026
IMPAX FUNDS SERIES TRUST I, not summed
1,425,010
11
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,337,048
12
GILDER GAGNON HOWE & CO LLC
13F CIK 902464 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,253,042
13
PARADIGM CAPITAL MANAGEMENT INC/NY
13F CIK 1037792 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,233,200
14
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
1,214,286
14.1
State Street(R) SPDR(R) S&P(R) Health Care Equipment ETF
Fund S000012330 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
115,048
14.2
State Street Institutional Small-Cap Equity Fund
Fund S000001631 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL FUNDS, not summed
58,810
14.3
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
13,960
14.4
State Street(R) SPDR(R) US Small Cap Low Volatility Index ETF
Fund S000039795 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
12,731
14.5
State Street Small-Cap Equity V.I.S. Fund
Fund S000001636 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
2,560
15
Millennium Management LLC
13G CIK 1319244 · Unknown · Dec 31, 2023
Rule 13d-1(c), passive investor
1,210,324
16
SILVERCREST ASSET MANAGEMENT GROUP LLC
13F CIK 1232395 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,158,576
17
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,076,839
18
Nuveen, LLC
13F CIK 1871926 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,026,036
18.1
College Retirement Equities Fund - Total Global Stock Account
Fund S000005080 · Registered fund · Jun 30, 2026
College Retirement Equities Fund, not summed
578,354
18.2
Nuveen Small Cap Growth Opportunities Fund
Fund S000005567 · Registered fund · Jul 31, 2026
Nuveen Investment Funds, Inc., not summed
210,919
18.3
Nuveen Small Cap Select Fund
Fund S000005569 · Registered fund · Jul 31, 2026
Nuveen Investment Funds, Inc., not summed
207,242
18.4
Nuveen Small Cap Blend Index Fund
Fund S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
58,219
18.5
Nuveen Equity Index Fund
Fund S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
24,026
19
Champlain Investment Partners, LLC
13F CIK 1315478 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
896,462
19.1
Champlain Small Company Fund
Fund S000005803 · Registered fund · Jun 30, 2026
ADVISORS' INNER CIRCLE FUND II, not summed
340,135
20
Point72 Asset Management, L.P.
13F CIK 1603466 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
790,323
21
First Eagle Investment Management, LLC
13F CIK 1325447 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
768,941
21.1
First Eagle Small Cap Opportunity Fund
Fund S000072438 · Registered fund · Jul 31, 2026
First Eagle Funds, not summed
673,476
22
FRANCIS LAURA
Insider CIK 1218802 · Oct 12, 2026
Director, issuer-wide
747,385
23
WELLINGTON MANAGEMENT GROUP LLP
13F CIK 902219 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
742,857
24
DIMENSIONAL FUND ADVISORS LP
13F CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
708,319
24.1
Dimensional U.S. Small Cap ETF
Fund S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
145,497
24.2
U.S. SMALL CAP PORTFOLIO
Fund S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
133,515
24.3
U.S. MICRO CAP PORTFOLIO
Fund S000000948 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
130,173
24.4
U.S. CORE EQUITY 2 PORTFOLIO
Fund S000000980 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
48,673
24.5
Dimensional U.S. Core Equity 2 ETF
Fund S000070903 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
39,352
25
MARSHALL WACE, LLP
13F CIK 1318757 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
690,288
26
NEXT CENTURY GROWTH INVESTORS LLC
13F CIK 1134007 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
585,289
27
JNL Multi-Manager Small Cap Growth Fund
Fund S000001776 · Registered fund · Jun 30, 2026
JNL Series Trust, not summed
549,385
28
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
548,287
29
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
457,267
30
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
441,912
30.1
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund S000048296 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
54,019
30.2
Goldman Sachs Small Cap Equity Insights Fund
Fund S000009329 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
49,673
30.3
Goldman Sachs Small Cap Growth Insights Fund
Fund S000014930 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
28,835
30.4
Goldman Sachs Absolute Return Tracker Fund
Fund S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
17,847
30.5
Goldman Sachs Variable Insurance Trust Small Cap Equity Insights Fund
Fund S000009355 · Registered fund · Jun 30, 2026
Goldman Sachs Variable Insurance Trust, not summed
16,690
31
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
439,161
31.1
Small Cap Index Fund
Fund S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
22,265
31.2
Small Cap Core Fund
Fund S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
16,851
32
HighMark Wealth Management LLC
13F CIK 1802451 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
425,049
33
BANK OF AMERICA CORP /DE/
13F CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
421,528
34
PEREGRINE CAPITAL MANAGEMENT LLC
13F CIK 764529 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
407,363
35
ROYCE & ASSOCIATES LP
13F CIK 906304 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
395,088
35.1
Royce Smaller-Companies Growth Fund
Fund S000009517 · Registered fund · Jun 30, 2026
ROYCE FUND, not summed
265,000
36
MILLENNIUM MANAGEMENT LLC
13F CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
364,286
37
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
342,784
37.1
Schwab U.S. Small-Cap ETF
Fund S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
183,274
37.2
Schwab Small-Cap Index Fund
Fund S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
106,897
37.3
Schwab Total Stock Market Index Fund
Fund S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
24,218
37.4
Schwab U.S. Broad Market ETF
Fund S000026631 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
21,723
38
Parkman Healthcare Partners LLC
13F CIK 1777015 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
328,686
39
TOCQUEVILLE ASSET MANAGEMENT L.P.
13F CIK 883961 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
304,000
40
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
288,877
41
SEI INVESTMENTS CO
13F CIK 350894 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
274,747
41.1
SIIT EXTENDED MARKET INDEX FUND
Fund S000035814 · Registered fund · May 31, 2026
SEI INSTITUTIONAL INVESTMENTS TRUST, not summed
7,300
42
PISETSKY MICHAEL A.
Insider CIK 1754765 · Oct 2, 2026
SVP, Ops & Adm/Chief Legal Ofr, issuer-wide
270,517
43
Embark Small Cap Equity Fund
Fund S000083503 · Registered fund · Jul 31, 2026
Harbor Funds II, not summed
270,156
44
HARBOR CAPITAL ADVISORS, INC.
13F CIK 1039128 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
269,505
45
Pier Capital, LLC
13F CIK 1310051 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
263,781
46
ESSEX INVESTMENT MANAGEMENT CO LLC
13F CIK 201772 · Registered investment adviser · Sep 30, 2026
263,101
47
AQR CAPITAL MANAGEMENT LLC
13F CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
253,848
48
RECUPERO ANTHONY J
Insider CIK 1210230 · Feb 17, 2026
Insider, issuer-wide
243,418
49
Maheshwari Anshul
Insider CIK 1853089 · Oct 5, 2026
Chief Financial Officer, issuer-wide
218,235
50
VELA Investment Management, LLC
13F CIK 1895612 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
201,094
50.1
VELA SMALL CAP FUND
Fund S000069564 · Registered fund · Jun 30, 2026
VELA Funds, not summed
189,126

23 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 275 holders

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Key facts CIK 1459839 CUSIP 825704109 13F (30d) 17 filings 17 filers Visit website Investor relations